Universal coal-cutting machine



A. L. C H OPIN. UNIVERSAL COAL CUTTING MACHINE.

APPLICATION EILED JULY 1', I919.

' Patented July 12, 1921.

2 SHEE'TS-SHEET l- A. CHOPIN. UNI' VERSA-L COAL CUTTING MACHINE.

APPLICATION FILED JULY 7, 1919.

Patented July 12, 1921.

2 SHEETSSHEET 2- Ill/ an/" "an run, a

UNITED STATES PATENT OFFICE.

ALBERIC ours cnorm, or rears, F nance.

UNIVERSAL coancnr rr ve vraonrnn.

Application filed July *7,

To (6 fill/0772 it 7720.51 0071.66??? Be it known that I, .ALBITIRIC Lotus CrIorIN, residing at Paris, France, have invented new and useful lm n'ovements-in or Relating to Universal Coal-Cutting Machines, of which thefollowing is a specification.

This invention relates to a universal coal cutting machine so arranged that it can work in any direction and in any position, and attack the cutting front at any desired oint. Y

One of the characteristic features of this invention is the application to coal cutting of the compressed air hammer, but it is further characterized by other special arrangements whichwill be hereinafter described. y

In the accompanying drawing g' merely by way of example,

Figure 1 is a general arrangement, in elevation partly in section, of the universal coal cutting machine and of its installation in a mine gallery,

Fig; 2 is a front elevation partly in section of the coal cutting machine in projection of F ig. 1, l 1

Figs. 3 and 4 are respectively an elevation and a side view partly in'section, showing the mounting of the pneumatic'hammer,

Fig. 5 is a front elevationpartly in sec-. tion of a drillconstruction given by way of example, V

Fig. 6 is a side elevation of the same drill,

Fig. '7 is a cross-section on line 7-7 of Fig. 5, and

ell

Fig. 8 is a section of a modified construc-.

tion of one of the collars or clips of the system.

As already stated, the essential part of the coal cutting machine comprises a pneu? matic hammer. 1 which, instead of being provided with a tool for metal working,

carries a drill '2 practically similar to that.

preferably flattened.

The pneumatic hammer 1 18 mounted on an arm 3 comprising a metal tube, near one used in ordinary coal cutting machines, but

of the ends of which is formed a branch 4:-

at a right angle to theaxis of the said tube;

into the said branch is introduced a cylin p c fi i o Letters n Patented July 12, "1 21.

1919. Serial no. 309,127. I

tube by meanstozf a chain 8 as shown in Fig. 4, forfthe purpose of avoiding its loss. Atiits otherend, the rod 5 is provided with a cylindrical head Qresting on the corre sponding flange of the branch 4:.

. lround'the headi) is secured the lower member 11 of asleeve 10 forming part of the mounting of the hammer 1, said lower member receiving the lower half of the hammer body, while the upper part of the latter fits without any play into a half collar 12 pivoted to the part 11 by means of a hinge 13. At the side opposite to the latter, each. of the parts 11 and 12 tennis nates in a kind ofoval loop such as 14:, and into .the said loops is introduced a cotter or wedge 15 which insures perfect tightening otthehammer in its mounting. i

The tube 3 is provided inside, at its free end, with .abore 16 into which can be introduced the rod 5, and-in this case, the pin 7 is introduced into a lateral hole of the tube 3 and into thegroove .6 ofthe said spindle, as shown in Fig. 4L Owing. to this arrangement, it .is pos'sibleto arrange the hammer below the tube 3, as .well asjabove, to facilitate drilling .as maybe required.

The arm 3 Ts introduced Tnto one of the parts 1'7 of a doublest-rapor. clip, the other part of which is mounted ,on a tubular column 19. The part 17 comprises two resilientbranches secured to the part 18 and terminating each in a kind of a loop 20. At the bottomrot thesaid part 17 is mounted a lining 21 which-fits the shape of the tube 3 which is compressed and held in place by a .cotter pin :22 forced into the loops 20.

The part 18 also comprises two resilient branches surrounding the column 19 and pressed together by a cotter pin 23.

Itwill be readily understood that, owing to the arrangement described, it is possible to move the pneumatic hammer 1 atgwill away tronn'or nearer to, the column 19 by sliding'cthe arm 3 in theclip .17; it is also possible to turnthe hammer about thefcol umn and to bring it either to the right or to the left of the latter; finally it can be raised or: lowered at will, by sliding the clip 18 on the column 19. Thus, the drill can be brought to any desired point of the cutting front, which it is desired to attack,

end, it is supported by a split sleeve or socket 24 resting on a collar 25, both being mounted onthe column 19; this collar or ,clip 25 is similar to thosealready described,

and it is tightened on the column by means of a cotter pin 26, so as to prevent it from sliding.

The column 19 must-not be of fixed length, forit must be capable of being adapted to the various heights or widths of the gallery in which work is done, according as the tube 191s placed vertlcally or vhorlzonta'lly.

To that end, the said tube 19 is made in two parts of one andthe same diameter, but

. of unequal length (Fig. 1); they are pr vided with opposite screwthreads and connected together by a nut or screwthreaded sleeve 2'? by means of which they can be brought nearer together or farther apart, so as to give the whole the length desired and to press the ends (against the roof and the bottom, or against the walls) so as to insure immobility of the column.

vided for the purpose.

[ gagement of a tightening wedge or cotter going.

At each of the said ends is secured a claw 28 intended to prevent sliding and resting either against the uprights or the timbering or against wooden parts 29 specially pro One of the types of drills that can be used on the hammer, is shown inFigs. 54; its head 30 which can be square in. crosssection,'fits into the hammer like an ordinary tool, and in front is a circular shoulder 31 forming a collar and provided on its circumference with a groove" 32 into which opens a radial hole 33 terminating at the other end at a longitudinal hole 34extending throughout the whole length 'of the drill, but plugged up at the head side by a pin 35 forced in. On the collar 31 is mounted a split collar or'clip 36, the ends of which terminate in loops 37for the enpinfasin the cases described in. the fore- 'Into aboss of the. said collar. 36 is screwed a un1on'39, the lnner tapering "end of which must be introduced into the hole 33 of the. collar and insure a tight joint at this oint. This union 39 is intended to. receive'a flexiblehose supplying water under pressure,.the supply of which:

can beregulated at will, and which, escaping through the end of the drill, washes away the debris and the dust produced by the work. n Y

As regards the body of the drill, it is preferably flattened as already stated, and

its cross-sectionhas an oval or elliptical shape, like that of the hole 34, throughout the whole length of the same body.

The end of the tool which does the work,

can be slightly widened'and provided with teeth as shown in the drawing; but like the body, it could be given any other shape, according to the nature of the coal or the .ore, and the requirements of working.

In Fig, 8 is shown a modified construction in which the clips 17:, 18 are formed with frusto-conical portions 40, 41, respectively,

which. engage around a double cone 42. This construction enables the arm 3 to be arranged obliquely as may be required to avoid moving the clips '18 and 25 on the column 19, and to enable a higher or lower point. of the cutting front to be reached. VVhen the arm 3 has been arranged in the desired po sition the cotter pin the device.

It will also be seen that the tightening or compression of the parts described, is

22 is'caused to tighten effected by means of cotter pins and does not require any spanners which are liable to get lost; the onlyexisting nut 27 having a diametrical hole 30 which enables it to be turned by means of any pinetc. 1 r l The coal-cutting machine could be converted on the spot into a drilling machine, into a pick ax, stone dresser, short, light,

very powerful, quick and without any remeans adjustable on the column to secure said arm to said column at an angle thereto,

andmeans to secure a pneumatic hammer to said arm and'having anarm for insertion either in the said opening or the said bore thereof. i

In testimony whereof I afiix my signature.

ALBERIC LOUIS I cnorru. 

